Planoqraph co



1 A. HAGERSTROM. TYPE WRITER RIBBON SPOOL AND MOUNT THEREFOR.

APPLICATION FILED JULY 10.,1911.

1,313,631. PdtenfedAug. 19,1919.

y D Y 'IMB COLUMBIA PLANDGRAPH co., WASHmdTON. n. c.

I. A. HAGERSTROM. TYPE WRITER RIBBON-SPOOL AND MOUNT IHEREFOR.

APPLICATION HLED .lULY 10. 19H. I 1 ,313,631 Patented Aug. 19,1919.

2 SH EETSSHEET 2.

UNITED STATES PATENT OFFICE.

JOHN a HAenRs'rRoM, or SGRANTON, PENNSYLVANIA, AssreNoR' TO vre'roRTYPE;

WRITER COMPANY, or ew YORK, N. Y., A CORPORATION or NEW YoRK.

TYPE-WRITER RIBBON-SPOOL AND MOUNT THEREFOR.

Specification of Letters Patent.

Application filed July 10,1917. Serial No. 179,665.

To all whom it may concern: I .Be it known that 1, JOHN A. HAGERSTRQM, acitizen of the United States, and resident of Scranton, in thecounty ofLackaw'anna and State of Pennsylvania, have invented certain new anduseful Improvements in Type Writer Ribbon Spools and Mounts .Therefor,of, which the following is a specification. i I This invention relates;to typewriterribbon' spools and I means for mounting; the same and hasfor its primary object to provide-an improved construction, combinationand arrangement of arts in-a deviceof this character. One oft e objectsof'my invention is to provide a ribbon spool of improved construction.Another object is to 7 provide a ribbon spool spindle of improved.

construction with improved means for detachably looking a ribbon spoolto said spindle. Further objects of invention will appear in thespecification and be pointed out in the appended claims, reference beinghad to the accompanying drawings exemplifying my invention in apreferred embodiment.

In the draWings,-

Figure 1 is a side elevation of the ribbon spool spindle;

Fig. 2 is an axial section of the spindle and spool mounted thereon,parts being brokenaway and parts shown in section;

Fig. 3 is a similar view of the spindle with contiguous parts removed; 7

Fig. 4 is a, side elevation of the axially slidable bolt and latchoperated thereby;

Fig. 5 is an elevation at right angles to Fig. 4:;

Fig. 6 is a bottom plan view of Fig. 1;

Fig. 7 is a transverse section of the spool;

Fig. 8 is a side elevation of one side;

Fig. 9 is a side elevation of the same from the opposite side to thatshown in Fig. 8, parts being broken away;

45 Fi 10 is a side elevation of a bodkin showing its application to thepresent invention. I

Referrin more particularly to the drawings,the ri bon spool spindle 1 ishollowed 5o interiorly to form an axial bore comprlsmg a portion 2 ofrelatively small diameter and a portion 3 of relatively large diameter,WhlOh opens through the end of said spindle.

Slidable within the spindle 1 is an axially.

movable bolt 4 having its lower end 5 re- 'lfatented Aug-19,1919.

du edin diameter to fit the portion 2 of the ax1al bore. Asshown inFigs. {1 and 5 the bolteand 5isrecess'ed' at 7 to accommodate thelatcharm'8 and'with arecess 9 tom:-

'commodate' .a ball- 10 whichconstitutes an arm extendlng inwardly intothe recess 9.

The latch 8 is provided with'out wardly extending lugs II'which arespaced apart to provide a notch, said lugs 11 being adapted to fit overthe inner edge of a flange 12 which constitutes a fulcrum for the latch.The flange 12' is rigidly connected o the I spindle 1 around an enlargedhub portion 13, said hub portion being slottedto accommodate thelat'chh;Thespindle 1 isalsoprovided with an annular shoulder 11 which is ribbonspool which also comprises a cylindrical wall 16 with spaced flanges 17.The cylindrical wall 16 is provided on one side with a narrow slot 18and on the other side with a broad slot 19, the edges of the narrow slotbeing arcuately recessed at 20 to permit the insertion of a bodkin 21(see Fig. 10). The bodkin 21 being inserted through the recesses 20 andnarrow slotl8 to protrude oppositely through the large slot 19, isadapted by its jaws 22 to engage the buckle 23 on the end of a tape 24,said tape being provided on its other end with an enlargement 25 whichprevents it being drawn entirely through the small slot 18. It will beseen therefore that when the spool has been properly positioned, the endof a typewriter ribbon may be readily drawn through and secured inthebuckle 23 as shown in Fig. 7. The spoolflanges 17 extend inwardlybeyond the cylindrical wall 16 and are provided with radial notches 26,neither of which is adapted to snap over the latch head 8 when the bolt4 is depressed against the spring 27 which is housed within the reducedportion manipulation of the ribbon holding tape has already beendescribed.

I claim: 1. In a device of the character" described, a spindle hollowedinteriorly, an axially slidable bolt therein, Which protrn de s at oneend of said; spindle gaidspindle beingl pfo vided with a ribbonsupporting flange, a

latch pivoted on said-flange:andglnovablyen gaging said bolt, and aribbon spool adapted ibex nga ed b fia d-latqhe. 2. In a deyice of thecharacter described, a 'spindle hollowed interiorlyfan-'aziially slidable bolt the rein which protrndes at one 'f saiil piniile 'aid Spindle'being proa-{ribtmi sii'ppo'rting flange; a

engaging fai'd fbolt; and a ribbon 'spool 1 adapted"tofbefiigtgd bysai dman; said tring 'rec e's es" for accommodating said 33]]; adevice of thecliaraoter described,

slidable' bolt ltlieieijnyy llich" b triidsi at one adapted to beengaged by. said latch, 'said tending-inwardly, beyond said drum forbearing on the ribbon spool spindle, flanges being provided withinwardly de- :pre'ssa surfacesadjacent said drinnfislaid flanges beingprovided with radiali-notches *forthe reception ofarl'atch mounted onthe ribbon-sp0ol' spind1e.

-- 5'. a typewritr,a'ribbon spool spindle,

a bolt reciprocable axially of said ignndle, a flange carried bysaidspind le, and afspbol engaging latch having a notch by means-of whichit' is osci11ata-b1y mounted: on "said flange, and an armhaving aiioundedl' e-X- tienlity, said bolt being provided "with a reby aidronnded;extremity; I

JOHN a-naoERST-Roir;

i s? thewall's of are movably engaged

